If you have made complaints to VM before (via the VM formal complaints process) ref the missing compo, and once 8 weeks has passed without VM resolving (or earlier with a deadlock letter), then you can go to arbitration as per process below
https://www.commsombudsman.org/our-process
but .....
Details are everything though (exact days, dates, times etc.) in working out what you are owed. VM gets two clear working days to fix any fault before the compensation clock starts and beyond that point it is a day rate of £9.33 for each full calendar day of total loss of service of phone and/or broadband.
If you reported the fault to VM by phone on 14/11/23 then VM would have 15/11 and 16/11 to fix the fault before the compensation begins. Your calculation would be
14/11/23 Fault reported
15/11 and 16/11 Two working days to fix - £9.33 for the payment trigger time (14/11 to 16/11 inc.)
17/11 to 21/11 Five calendar days @ £9.33
22/11 Tech visit, service restored
x6 payments @ £9.33 = £55.98
I have taken the dates from your previous posts. Adjust accordingly if I have not understood correctly.
VM has to credit your account within 30 days of the service being restored. So if your service was restored on 22/11/23, VM still has until 22/12/23 to apply any credit
Past topics on here regularly describe VM trying to dodge, reduce or delay paying the correct auto compensation. So, work out what you think you are due and if your account isn't credited within 30 days of your service being restored, make your formal complaint to VM and be prepared to go to arbitration as/when/if required.